Thread: Exhaust Heat

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Heat shields do not wrap a muffler, they are only on the top half. Heat shields will give the biggest bang for the buck. They set up off the muffler about an inch, this does two things. First the shield itself acts as a heat sink absorbing heat quickly and dissipating it. Second the air gap between the shield and muffler allows air flow to cool the heat that is radiating from the muffler.

Notice the way the shields for the header pipe is made post # 2. Go look under a pick up to get the full idea. Very common, could get one or two at a junk yard. Cut bend and fit if the mufflers on your hotrod truck are smaller then a stock truck.

If it is feeling hot in the winter you are in for a sauna come summer. I also suggest you consider sealing any leaks in the cockpit floor. Wood is not the best heat transfer material, radiates more then dissipates.